.30-30 Ackley Improved Load Data & Reloading Guide
Also known as: .30-30 AI, .30-30 Ackley, .30 Ackley Improved
About .30-30 Ackley Improved
The .30-30 Ackley Improved is a popular wildcat cartridge based on the classic .30-30 Winchester, developed by P.O. Ackley to enhance performance by modifying the shoulder angle and case capacity. This cartridge maintains the historical heritage of the .30-30 Winchester, which debuted in 1895, but offers superior ballistic capabilities for modern shooters. Acknowledged for its reliability and versatility, the Ackley Improved version provides significant improvements in velocity and power.
Key technical characteristics of the .30-30 Ackley Improved include a steeper shoulder angle, typically around 40 degrees, and less body taper, allowing for a greater case capacity. These modifications enable reloaders to achieve higher velocities when compared to the standard .30-30 Winchester, while still fitting standard .30-30 rifles with minimal modifications. This conversion primarily requires the chamber to be reamed to the new specifications, a relatively simple gunsmith operation.
Reloaders appreciate the efficiency of the .30-30 Ackley Improved for its enhanced ballistic performance, including increased velocity and improved trajectory. Capable of utilizing bullet weights ranging from 110 to 170 grains, it is particularly effective with 150-grain and 170-grain projectiles, which offer optimal balance between velocity and energy. The increased case capacity allows for experimenting with various powder types to tailor loads for specific purposes.
The .30-30 Ackley Improved is favored for hunting medium-sized game such as deer and black bear, due to its enhanced energy and better downrange performance compared to the original .30-30 Winchester. The improved design allows for flatter trajectories, making it suitable not only for hunting but also for recreational shooting and informal competitions. For the reloader, significant advantages include improved efficiency and flexibility in load development, offering a broader range of power and precision compared to standard calibers.
Technical Drawing

Technical Specifications
Start Calculating to Develop your own Load Data for .30-30 Ackley Improved
Use our professional ballistics calculator to develop safe and accurate load recipes for .30-30 Ackley Improved.
Start CalculatingStandard Load Data — .30-30 Ackley Improved
Select your desired cartridge and bullet weight below to access the corresponding load table. From there, you can choose any listed load recipe and transfer it directly into the ballistics calculator for further refinement, optimization, and precision tuning.
.308 | 123gr | Sako Gamehead
.308 | 170gr | Prvi Partizan FSP
.308 | 220gr | Winchester Silvertip
.308 | 170gr | Sierra Pro-Hunter
.308 | 150gr | Speer Hot-Cor
.307 | 110gr | Prvi Partizan SP RN
.311 | 123gr | Sellier & Bellot FMJ
.310 | 123gr | Nosler Varmageddon
.311 | 123gr | Lehigh Defense Controlled Chaos
.308 | 170gr | Remington SP Core-Lokt
.308 | 170gr | Remington HP Core-Lokt
.308 | 170gr | Winchester FN Silv.Tip 30-30
.308 | 180gr | Remington Bronze Point
.308 | 180gr | Winchester Silvertip
.308 | 180gr | A-Square DeadTough
.308 | 170gr | Winchester FN Pow.Point 30-30
.308 | 170gr | Norma SPFN
.308 | 180gr | A-Square MONO RN
.308 | 165gr | Speer RN
.308 | 180gr | Sierra Pro-Hunter
.308 | 190gr | Remington SP Extended-Range BT
.308 | 170gr | Nosler Partition
.311 | 180gr | CamPro
.308 | 168gr | MEN HPBT Match
Frequently Asked Questions
The maximum pressure for .30-30 Ackley Improved is 46,412 psi | 3,200 bar.
.30-30 Ackley Improved typically uses a Large Rifle (LR) primer.
The case capacity of .30-30 Ackley Improved is approximately 48.6 grains of water (H₂O).